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Finding the Fourth Proportional to 6,615.57, 9,928.26 and 2,666.85

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Solution

The fourth proportional to 6,615.57, 9,928.26 and 2,666.85 is: 4,002.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.57 : 9,928.26 = 2,666.85 : x
  2. Step 2: Convert to fraction form
    6,615.57/9,928.26 = 2,666.85/x
  3. Step 3: Cross multiply
    6,615.57x = 9,928.26 × 2,666.85
  4. Step 4: Simplify right side
    6,615.57x = 26,477,180.18
  5. Step 5: Solve for x
    x = 26,477,180.18/6,615.57
  6. Step 6: Final answer
    x = 4,002.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.